Sorry, you walked right into it. 
I have regarded tomatoes as abhorrent since I was a wee lad. My dad once told me that he has a memory of me flinging the tomato off a hamburger when I was about four or five years old.
Jell-O. Last time I ate any Jell-O gelatin was in the fifth grade, when a student brought in a tray of grape Jell-O cut up into miniature Mississippis as part of a report on the state. I became powerfully nauseous after eating my little grape Mississippi, possibly for reasons unrelated to the Jell-O, since I was the only one in the class not to experience any ill effects. Since then, I have been unable to contemplate the idea of eating Jell-O gelation without thinking of being nauseous.
Years ago, at a Maui luau, I tried poi. Impossible for me to describe the taste. It was the opposite of taste. It was anti-taste.
spinach, liver, eggs.
Me, too. I’m not kosher (or Jewish), but I hate those thick slabs of baked ham, especially when it has some disgusting sickly-sweet glaze on it.
Oddly enough, I like thinly sliced ham from the deli.
As far as I’m concerned, they’re two completely different foods.
Head cheese. Just looking at it gives me the willies.
Sardines and anchovies. You eat the heads ? G-R-OSS.
Corned beef. Vile and obnoxious.
Sauerkraut. Just how are you supposed to know when it goes bad?
Fruitcake.
:smack: dammit
Olives. Green, black, whatever. They’re disgusting. They taste like sucking on a cap from a soda bottle.
E.
Considering I’m a picky (REALLY picky) eater, it would probably be easier for me to list stuff I like. 
My top “ding the bell on the repulsive scale” things are:
- Bananas
- Lima Beans
- Organ Meats
- Strawberries
As I said, I could go on and on and on - but oddly enough, don’t be dissin’ my Spam - fried Spam and a glass of ice cold milk for breakfast? YUMMMMMMMMMMMMMM…
I’ll add my voice for mayonnaise which I find disgusting and I cannot stand it, even if it’s in small quantity. I always find out there is some inside (so I always have to ask : what sandwich do you have without mayonnaise ? and usually have to take the classic ham and butter because they put mayonnaise EVERYWHERE !)
Same for garlic, except I don’t haaaate the taste of it, but don’t like it so much and my body doesn’t like it… (doesn’t stand it very well). And as for mayonnaise, there seems to always be some garlic inside everything !
And for food I don’t like but that isn’t as much repulsive as mayonnaise, ie I can eat it if mixed with other things :
- coconut
- avocado
Gelatin isn’t food. There’s actually a Conservative rabbinical ruling on this that we follow- if gelatin is not food, it doesn’t matter if it comes from non-kosher animals, so we can eat regular marshmallows and the like. You could interpret this to mean that we could eat Jell-O, but I’m sure it means that God did not intend for us to eat Jell-O.
Organ meats, or genital meats, and most weird area meats in general.
And I’ve had most of them more than once, too, I’m not being an ignant merikin. 
I’ve had tripe (and in my circles you’re a westernized wuss if you don’t like tripe, so I sort of keep quiet about it), tongue, liver, cabeza (head meat), fish eyes, gizzards, headcheese, posole with ears and stomach and stuff, miscellaneous beef organ stew, organ filled flautas. So I’m not just projecting.
I guess the one exception is chorizo, which is apparently made from organs when I thought it was just ground pork. I just found this out a few days ago. The way I’ve had it is the only way that doesn’t come with that stomach turning ‘organ’ taste.
Oh, and feet are okay. (dum sum chicken/duck, pickled pig)
But even aside from mad cow and rumors of astronomical calories, I will never touch brain.
In Living Color ensured that I’ll never eat chitlins, either, although I like most other soul foods.
Eating live stuff (i’m looking at you, little baby octopuses) would make me feel bad, in addition to grossing me out.
I also can’t stand wet, smelly cheeses. having the smell suffusing the dinner table makes me lose my appetite. Cottage Cheese is gross, too, though I love cream cheese.
Anything visibly moldy. The bleu cheese has to be in some non-obvious form.
I love barbeque pork buns, but biting into any piece of fat therein makes me gag. I used to hate all meat fat, but as an adult I find some of it downright tasty.
Whole insects, I guess. I feel pretty progressive about it in theory, but holding a salted grasshopper at a party and thinking about bringing it to my mouth made me squeal in horror. I didn’t so much put it back on the platter as let it fall from my suddenly paralyzed fingers.
But mushrooms, poi/taro, kimchee and canned corn (not the mushy cafeteria grade, though, ick) are delicious. And I don’t get the cilantro thing - it just smells/tastes like cool, palatable parsely to me. Guess I don’t have the yuck gene.